4000m车载钻机钻台的有限元计算与分析  

A finite element calculation and analysis of the drilling floor of the 4000 m truck-mounted rig

作　　者：刘俭 

机构地区：[1]南阳二机石油装备(集团)有限公司

出　　处：《石油机械》2009年第6期24-27,94,共4页China Petroleum Machinery

基　　金：2005年国家科技兴贸行动计划项目"3000~4000m车装钻机"(2005EE880028);2008~2009年国家火炬计划项目"4000m车装钻机"(2008GH041359)的分项目

摘　　要：钻台在工作过程中,不仅承受很大的起升载荷和作业载荷,而且由于转盘的旋转以及井底钻压的波动容易引起钻台的强烈振动,对钻台设备造成不利影响,甚至在一定转速范围内无法进行正常的钻井作业。为此,对4000 m车载钻机钻台的多种工况进行了有限元计算及分析,找出了钻台的危险工况、最大应力位置及共振频率,为钻台设计、制造与使用的可靠性和安全性提供了保证或依据,并为同类型结构设计提供了借鉴。During operation,the drilling floor bears serious hoisting and operating load.Moreover,due to the rotation of the rotary table and the fluctuation of the well bottom drilling pressure,the serious vibration of the drilling floor will arise,resulting in unfavorable effects on the floor equipments and even failure of the normal drilling operation within a certain speed of rotation.Therefore,a finite element calculation and analysis of many operating conditions of 4 000 m truck-mounted rig's drilling floor is performed and the dangerous condition of the floor,the maximum stress position and resonance frequency are found out,providing the guarantee or basis for the reliability and safety for designing,manufacturing and using the floor as well as reference for the design of similar structure.

关 键 词：车载钻机 钻台 有限元计算 模态分析 

分 类 号：TE28[石油与天然气工程—油气井工程] O241.82[理学—计算数学]